Here are the scores that Jenna has received on her seven quizzes: 16 11 20 19 12 1 18 What is the lower quartile

Answer 1

put scores in order

1 11 12 16 18 19 20

number of scores (n) = 7

lower quartile is 25th percentile

slot number of 25th percentile is (n + 1)/4 = 2

2nd slot has 11, so 11 is lower quartile.